Metal-working machine.



Patented lune 5, I900.

0. B. swmrou.

METAL WORKING MACHINE.

(Application filed June 30, 1899.) (N0 Model.) 3 Sheets-Sheet I.

m: NORRIS Pmns cu. mm'oumm. wnsnlrmmu, o. c

Patented June 5, I900- 05 B. SWINTON. METAL WORKING MACHINE.

(Application filed June a0, 1889.) (No Model.)

3 Sheets$he et 2.

Wane/wee THE idmms Ptrzns co.. mo'm-umm. WASHINGTON, w. c.

Patented lune 5, I900. D B SWINTON METAL WORKING MACHINE.

(Apple is nflldJun 30 1899) (No Model.) 3 Sheets-Sheet 3.

S HT 1 m: Npnms mas-00..mmumm. wnsnmufon, D. c.

ATgENT Prion.

mwmm

DAVID enown swm'ron, or MONTREAL, CANADA.

METAL-WORKING MACHINE SPECIFICATION forming part of Letters Patent N 0. 650,876, dated June 5, 1900.

Application filed June so, 1899.

To aZZ whom it may concern:

Be it known that I, DAVID BROWN SWIN- TON, machinist, of the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented certain new and useful Improvements in Metal-Forming Machines; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates particularly to machines for forming the .Bonz'ano rail-joint plate; and it has for its object to provide a machine that will produce more perfect plates in less time and at less cost than has been possible heretofore. To this end I provide a stationary matrix and a traveling male die between Which the blank from which the Bonzano plate to be formed is placed, means being provided to guide the traveling die and a'yielding retainer being carried by the, male die to retain the plate against displacement while being formed, while a series of punches are carried by said male die and guided in passages in the retainer to punch the spikeholes in the plate simultaneously with its formation.

This forming-machine may be operated by any desired means for imparting to the'male die a rectilinear reciprocal movement, and as the reciprocating means form no part of my invention there is no illustration nor will there I be further mention thereof herein.

For full comprehension, however, of the invention reference must be had to the accompanying drawings, forming a part of this specification, in which like symbols indicate the same parts, and wherein- Figure 1 is a plan view of my improved machine. Fig. 2 is a longitudinal sectional view thereof, taken on line 2 2, Fig. 1. Fig. 3 is a transverse vertical sectional view taken on line 3 3, Fig. 2, and illustrating particularly a face View of the male die and the parts carried thereby. Fig. 4 is a rear view of the matrix-block. Fig. 5 is a longitudinal sectional view of the complete machine, taken through theretainer, showing the male-dieactuating parts partly in section. Fig. 6 is a similar view to Fig. 5, taken through the male die. Fig. 7 is a face view of a completed Bonzano plate; Fig. 8, a transverse sectional semi No. 722,475. on model.)

view thereof, taken on line '6 6, Fig. '7; and Fig. 9 is a transverse sectional view through the rail, illustrating plates formed on my machine set in place.

The bed-plate or carrier may be arranged horizontal or vertical, as desired, and preferably consists of a pair of longitudinal portions b b, to which the matrix block is bolted through bars 6 0', cast in one therewith. This matrix-block is of somewhat U form set on its side, the portion thereof in contact with the bed-plate having the pair of bars 0 0 cast in one therewith and countersunk into the bed-plate, while the overhanging portion 61 has its middle cut away and the wall '6 formed with an inwardly-fiared recess or matrix proper, f, with a horizontal floor f and two pairs of outwardly-flared passages g, while the adjacent faces of the overhanging portions have a pair of adjustable brackets h bolted thereto and affording a bearing for a roller 2'. The male die comprises a main trav- 'eling head k, which is secured in any desired way to the reciprocating means. The middle portion in of this head, constituting the male die proper, projects toward the matrix and is diminished in width, as shown at Z Z, Fig. 1, and upwardly inclined, as at m, Fig. 2, and formed with a forwardly-projecting nose 'n. The retainer 0 is equal in width to the matrix and is formed to accommodate and act as a guide for the male die proper, the sides whereof are formed with flanges while passages '0 are formed in the retainer in line with the passages g.

The punches p are set at their rear ends in recesses in the head in line with the passages 0, into which their forward ends project, while said retainer is yieldingly connected to the head to move therewith by a pair of bolts q, taking through the diminished forward ends of a pair of openings 7" in the head and through the rear portion of the retainer into openings 0 where they receive retainingnuts q, the retainer and head being normally yieldingly held apart by a pair of expansile helical springs s, encircling said bolts and bearing between said retainer and head. The retainer is supported and guided by a plate 25, bolted through flanges t to the bed-plate and having a pair of V-rails on the surface thereof which take into V-grooves in the bearing-surface of the retainer and longitudinally k the U. The head is then driven forward, the

retainer first coming into contact with and riding upon and flattening the olfset portion y of the plate and holding the blank firmly in place. The head continuing in its travel will, through the nose n and the inclined and diminished formation of its body contiguous to said nose, swage the port-ion of the plate in its path into the matrix, thus imparting to it the required shape. Simultaneously with this swaging operation the punches will have punched the spike-holes 3 through the plate, thus completing it.

The function of the roller i is to hold the male die to its Work and preventitrising with the iron being swaged, as would be its natural tendency, while the overhanging portions (I prevent the vertical deflecting of the retainer.

The male die and punches are secured to the head by bolts and nuts in order that either may be readily removed and the function of the other performed, thus enabling the swaging and punching operations to be done independently, if desired, as would very likely be the case if the actuating mechanism should happen to not be of sufficient strength to perform both operations simultaneously.

W hat I claim is as follows:

1. In a metal-forming machine the combination of a stationary matrix-block, and a reciprocating male die, said matrix-block being in the form of a U with its legs extending horizontally toward said male die and receiving said die between them the matrix being formed in the vertical portion of said U, an antifriction device carried by the upper leg of said U to receive the upward thrust of said male die and prevent the vertical displacement thereof, and a retainer yieldingly connected to said male die to move therewith.

2. In a metal-forming machine the combination of a stationary matrix-block, and a reciprocating male die, said matrix-block being in the form of a U with its legs extending horizontally toward said male die and receiving said die between them'the matrix being formed in the vertical portion of said U, and the upper leg of said U being divided; a pair of bearing-brackets secured upon the adjacent faces of said divided leg and a roller mounted in said brackets to prevent the vertical displacement of said male die substantially as described.

In a metal-forming machine the combination of a stationary matrix-block, and a reciprocating male die, said matrix-block being in the form of a U with its legs extending horizontally toward said male die and receiving said die between them the matrix being formed in the vertical portion of said U, and the upper leg of said U being divided; a pair of bearing-brackets secured upon the adjacent faces of said divided leg, and aroller mounted in said brackets to prevent the vertical displacement of said male die; anda-retainer yieldingly connected to said male die to move therewith,substan tially as described.

In testimony whereof I have affixed my signature in presence of two witnesses.

DAVID BROIVN SWINTON.

\Vitnesses:

XVILLIAM P. MCFEAT, FRED. J. SEARS. 

